Finding the Fourth Proportional to 316,277.70, 474,416.55 and 105,893.70
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Solution
The fourth proportional to 316,277.70, 474,416.55 and 105,893.70 is: 158,840.55
Step by Step Solution
- Step 1: Write the proportion equation
316,277.70 : 474,416.55 = 105,893.70 : x - Step 2: Convert to fraction form
316,277.70/474,416.55 = 105,893.70/x - Step 3: Cross multiply
316,277.70x = 474,416.55 × 105,893.70 - Step 4: Simplify right side
316,277.70x = 50,237,723,820.74 - Step 5: Solve for x
x = 50,237,723,820.74/316,277.70 - Step 6: Final answer
x = 158,840.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.